diff --git a/configure/os/CONFIG.Common.darwin-x86_64 b/configure/os/CONFIG.Common.darwin-x86_64
deleted file mode 100644
index 4a92a2be8..000000000
--- a/configure/os/CONFIG.Common.darwin-x86_64
+++ /dev/null
@@ -1,19 +0,0 @@
-# CONFIG.Common.darwin-x86
-#
-# $Id$
-# This file is maintained by the build community.
-#
-# Definitions for darwin-x86 target builds
-# Sites may override these definitions in CONFIG_SITE.Common.darwin-x86
-#-------------------------------------------------------
-
-#
-# To build universal binaries, configure ARCH_CLASS
-# in the file CONFIG_SITE.Common.darwin-x86
-
-# Include definitions common to all Darwin targets
-include $(CONFIG)/os/CONFIG.darwinCommon.darwinCommon
-
-ARCH_DEP_CFLAGS +=   -m64
-ARCH_DEP_LDFLAGS +=  -m64
-
diff --git a/configure/os/CONFIG.darwin-x86_64.Common b/configure/os/CONFIG.darwin-x86_64.Common
deleted file mode 100644
index 6d2ac9c36..000000000
--- a/configure/os/CONFIG.darwin-x86_64.Common
+++ /dev/null
@@ -1,11 +0,0 @@
-# CONFIG.darwin-x86.Common
-#
-# $Id$
-# This file is maintained by the build community.
-#
-# Definitions for darwin-x86 host builds
-# Sites may override these definitions in CONFIG_SITE.darwin-x86.Common
-#-------------------------------------------------------
-
-#Include definitions common to unix hosts
-include $(CONFIG)/os/CONFIG.UnixCommon.Common